Ferocity of Iron Gall Ink

  The subject of iron gall ink seems to provoke the most enthusiastic discussion on this blog, particularly the formulations for making it. There has been some excitable discussion here. I have mentioned its capacity for chewing into parchment in the iron gall ink section of Medieval Writing, but this posting from Johan Oosterman is a stunner, or is that a stinker, of an example of what damage the stuff can do. Self-cannibalising manuscript.